Section 3-5: Genetic Inheritance

Question 1

locus (loci)

Answer 1

location of different genes

Question 2

allele

Answer 2

different forms of same gene

Question 3

true breeding line

Answer 3

almost all loci become homozygous

Question 4

mendel’s first law

Answer 4

principle of segregation
allele pairs seperate or segregate during meiosis, randomly paired at fertilization

Question 5

monohybrid cross

Answer 5

inheritance of one locus

Question 6

mendel’s second law

Answer 6

principle of independent assortment
the alleles of 1 gene sort into gametes independently of alleles of another gene

Question 7

dihybrid cross

Answer 7

inheritance of 2 loci

Question 8

2 traits segregating together

Answer 8

2 loci closely located on same chromosome

Question 9

genetic linkage

Answer 9

inheritance of 2 linked loci and traits

Question 10

genetic distance (cM)=

Answer 10

% recombination

Question 11

homozygous

Answer 11

same gene variant/form

Question 12

heterozygous

Answer 12

different gene variant/form

Question 13

dominant

Answer 13

appears even if corresponding locus is heterozygous

Question 14

recessive

Answer 14

disappears when corresponding locus is heterozygous